A senior U.S. counterterrorism official tells NPR that without a body to conduct DNA tests on, it’s hard to be completely sure. But he characterized U.S. spy agencies as being “80 to 85 percent” certain that Saad bin Laden is dead.

The U.S. counterterrorism official says Saad bin Laden wasn’t important enough to target personally — that he was “in the wrong place at the wrong time.”